Assuming I use 1 transformer to power 2 shuntys (?shunties) - is the correct way to wire 1 board to the transformer and using appropriately sized hook-up wire to connect this shunty to the AC in of the next shunty?

Looking at the schematic - I assume that a transformer with 2 separate secondaries can be used - as long as the centre 2 wires are connected?

Originally posted by hershann Assuming I use 1 transformer to power 2 shuntys (?shunties) - is the correct way to wire 1 board to the transformer and using appropriately sized hook-up wire to connect this shunty to the AC in of the next shunty?

Looking at the schematic - I assume that a transformer with 2 separate secondaries can be used - as long as the centre 2 wires are connected?

her shann

The trafo's secondaries must be connected to both Shunties AC input. You can do that by taking the secondaries to the first Shunty's AC input, and from there to the next Shunty's AC input.
Or you can connect the trafo's secondaries to a screwterminal and fan them out from there, which I think would be a bit more practical. Especially if you have to take it apart, for some reason. Yes you must connect the 2 centerwires on a trafo with dual secondaries, allright.

(ps : Zener diodes have a rotten accuracy, with at least 20 at hand it's easy peasy to match them in 5-string sets with an equal voltage droppie, personally i don't fancy a heatsink running 20% hotter than his opponent. In the worst case you don't have enough voltage slack for the 2nd regulation stage)

- For Shunty : Resistors R21 ,R22 , R23, R24 , R23a , R24a need to be either plain carbon 0,5W ones , or decrease them to 1E8 or 2E2 , if you insist to use metal films of 0,25W variety . Few clever Shunty builders pointed that these resistors are prone to burning , if you use low ESR biggie electrolytics in input side of Shunty .

Instead of a 5pF Mica, find a PTFE trimcap.
Look for Phili types in Europia.

In the North-Amerrygoround it's Sprague Goodman Filmtrim@ GXA/GXE series.
Last time i looked i saw a single one of the non-SMT listed for $4/pc.
So for the Yanksters it's either Flea-Bee, go Filmtrim SMT wacko or hit someone over the head.

Instead of a 5pF Mica, find a PTFE trimcap.
Look for Phili types in Europia.

In the North-Amerrygoround it's Sprague Goodman Filmtrim@ GXA/GXE series.
Last time i looked i saw a single one of the non-SMT listed for $4/pc.
So for the Yanksters it's either Flea-Bee, go Filmtrim SMT wacko or hit someone over the head.